公开(公告)号：EP2564021A4

公开(公告)日：2017-02-22

申请号：EP11775405

申请日：2011-01-06

申请人： EXXONMOBIL UPSTREAM RES CO

发明人： LAMBERTI WILLIAM A ,  KING HUBERT E ,  HORN WILLIAM C ,  ZIMMER MINDY M ,  MACLEOD GORDON ,  POTTORF ROBERT J ,  SRNKA LEONARD J

IPC分类号： G01N33/24

CPC分类号： G01N33/241

摘要： The present techniques are directed to a method for microprobe analyses of isotope ratios in inhomogeneous matrices. The method includes selecting matrix standards that have matrices that resemble a target matrix. A bulk isotope analysis is run on each of the matrix standards to determine a bulk isotope ratio value. A microprobe analysis is run on each of the matrix standards to determine a microprobe isotope ratio values for each of the plurality of matrix standards. Spurious values are eliminated from the microprobe isotope ratio values. The microprobe isotope ratio values are averaged for each of the matrix standards to create an average microprobe isotope ratio value associated with each of the matrix standards. The bulk isotope ratio value for each of matrix standards is plotted against the average microprobe isotope ratio value associated with each of the matrix standards to create a matrix corrected calibration curve.

摘要翻译： 本技术涉及用于非均匀基质中同位素比率的微探针分析方法。 该方法包括选择具有类似于目标矩阵的矩阵的矩阵标准。 在每个矩阵标准上进行体同位素分析，以确定体积同位素比值。 在每个矩阵标准上进行微探针分析以确定多个矩阵标准中的每一个的微探针同位素比值。 杂点值从微探针同位素比值中消除。 对于每个矩阵标准物对微探针同位素比值进行平均，以产生与每个矩阵标准相关联的平均微探针同位素比值。 将每个矩阵标准物的体同位素比值与每个矩阵标准相关的平均微探针同位素比值作图，以产生矩阵校正曲线。